Wireless charging module

Abstract

The application discloses a wireless charging module with a charging main body and a fan, and the charging main body at least comprises a sheet metal bottom shell and a main body air duct; the sheet metal bottom shell is located at the bottom of the charging main body; the fan at least comprises a fan shell, a fan blade group and a fan air duct; the fan shell is fixed on the sheet metal bottom shell, and the fan blade group is arranged in the fan shell; in the axial direction, the fan blade group directly faces the sheet metal bottom shell, and a gap is formed between the fan blade group and the sheet metal bottom shell; the fan air duct and the main body air duct are communicated. The application effectively reduces the assembly process, reduces the total weight and total cost of the product, and avoids the generation of collision noise.

Description

Technical Field

[0001] This invention relates to the field of wireless charging, and more particularly to an in-vehicle wireless charging module. Background Technology

[0002] In car wireless chargers, wireless chargers with a power of 15W or higher generally come with a fan assembly to dissipate heat from the phone while charging. For example, in Chinese patent CN202110267568.X, the fan has a fan base in the direction facing the aluminum alloy lower shell. This base needs to be fixed with screws, and then the whole thing is fixed to the aluminum alloy lower shell. This method is not only complicated in terms of assembly process, but also has the risk of abnormal noise from the impact between the fan base and the aluminum alloy lower shell. Summary of the Invention

[0003] This invention provides a wireless charging module that uses fewer components than existing technologies, making it easier to assemble, lighter, and cheaper.

[0004] The wireless charging module has a charging body and a fan. The charging body includes at least: a sheet metal base and a main air duct; the sheet metal base is located at the bottom of the charging body; the fan includes at least: a fan housing, a fan blade assembly, and a fan duct; the fan housing is fixed on the sheet metal base, and the fan blade assembly is disposed inside the fan housing; in the axial direction, the fan blade assembly directly faces the sheet metal base, and there is a gap between the two; the fan duct and the main air duct are connected.

[0005] Preferably, a recess is formed on the sheet metal base; the position of the fan blade assembly corresponds to the recess.

[0006] Preferably, the side of the fan housing facing the sheet metal base is an open structure, so that the fan blade assembly faces the sheet metal base directly in the axial direction.

[0007] Preferably, the charging body further includes: a plastic shell fixed to the sheet metal base shell, forming an internal cavity; a coil disposed within the cavity, with its working direction facing the side of the plastic shell; a printed circuit board assembly disposed within the cavity and communicating with the coil; a shielding cover disposed within the cavity, located between the coil and the sheet metal base shell; and a filter plate disposed outside the cavity on the plastic shell.

[0008] Preferably, at least one side of the recess extends to the edge of the sheet metal base.

[0009] This application effectively reduces assembly steps, thereby reducing the overall weight and cost of the product. It also avoids the generation of collision noise. Attached Figure Description

[0010] Figure 1This is a schematic diagram of a fan assembly in a wireless charging module in the prior art.

[0011] Figure 2 A schematic diagram of the overall wireless charging module of this utility model.

[0012] Figure 3 A schematic diagram of the split components of the wireless charging module of this utility model.

[0013] Figure 4 This is a schematic diagram of the fan in the wireless charging module of this utility model.

[0014] Figure 5 This is a cross-sectional view of the wireless charging module of this utility model. Detailed Implementation

[0015] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] This utility model discloses a wireless charging module, which consists of a charging body 1 and a fan 2. The fan 2 is fixed to the charging body 1 with screws. This charging module generally refers to an in-vehicle wireless charging module. There is a gap between the fan 2 and the charging body 1, rather than a direct and complete fit. This is mainly achieved by removing the original fan base shell of the fan 2, or by setting a recess 111 on the charging body, etc. Details will be explained below.

[0017] like Figure 5 As shown, the charging body 1 includes at least a sheet metal base shell 11 and a main air duct 12. It may also include a plastic shell 13, a coil 14, a printed circuit board assembly 15, a shielding cover 16, a filter board 17, etc., for wireless charging. Here, the plastic shell 13 and the sheet metal base shell 11 are fixedly connected internally to form a cavity for housing components such as the coil 14. The plastic shell 13 and the sheet metal base shell 11 are arranged in an upper and lower structure relative to each other; the term "relative" is used because they are not necessarily structurally symmetrically joined.

[0018] The coil 14 is disposed inside the receiving cavity, with its working direction facing the plastic housing 13; the printed circuit board assembly 15 is disposed inside the receiving cavity and communicates with the coil 14; the shield 16 is disposed inside the receiving cavity, located between the coil 14 and the sheet metal base 11; the filter board 17 is disposed outside the receiving cavity, on the plastic housing 13.

[0019] The fan 2 includes at least: a fan housing 21, a fan blade assembly 22, and a fan duct 23. Compared with fan assemblies in the prior art, the fan 2 in this application does not have a fan base, such as...Figure 1 The prior art shown has a fan base 0 located between the fan blades and the base plate. Its purpose is to limit the airflow into the fan blades and prevent excessive airflow from affecting the operation of the fan blades.

[0020] This application is as follows Figures 2-4 As shown, the fan blade assembly 22 has no fan base casing outside and faces the sheet metal base casing 11 directly. The side of the fan housing 21 facing the sheet metal base casing 11 is also an open structure, so that the fan blade assembly 22 faces the sheet metal base casing 11 directly in the axial direction without any other obstruction.

[0021] The fan housing 21 is fixed to the sheet metal base 11, and the fan blade assembly 22 is disposed inside the fan housing 21. In the axial direction, the fan blade assembly 22 faces directly toward the sheet metal base 11, and there is a gap between the two; the fan duct 23 is connected to the main air duct 12.

[0022] The aforementioned gap can be formed by the fan housing 21 forming a protruding column at the fixing screw, allowing the entire fan 2 to be raised relative to the sheet metal base 11. This solution is not shown in the diagram.

[0023] In addition, a recess 111 can be formed on the sheet metal base 11; the position of the fan blade assembly 22 corresponds to the recess 111.

[0024] In this manner, the fan blade assembly 22 faces directly towards the sheet metal base 11, with a gap between them. This achieves the same effect as in the prior art while reducing the number of parts. The gap, through the air intake space, prevents the formation of an effective airflow.

[0025] The recess 111 extends at least one side to the edge of the sheet metal base 11, forming an air vent 18. The air vent 18 provides space for air intake, and its number and size can be adjusted according to actual needs. The air vent 18 can limit the air intake, preventing excessive airflow from affecting the normal operation of the fan blade assembly 22.

[0026] Compared to existing technologies, fan 2 reduces the number of parts—the fan base and the screws used to mount it are no longer needed. The recessed portion 111 on the sheet metal base 11 increases airflow and improves fan performance. The elimination of the fan base also avoids potential noise issues caused by collisions with the sheet metal base 11. By reducing the number of parts in fan 2, assembly steps are effectively reduced, while the overall product weight and cost are also decreased.

[0027] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A wireless charging module comprising a charging body (1) and a fan (2), characterized in that, The charging body (1) includes at least: a sheet metal bottom shell (11) and a main air duct (12); The sheet metal bottom shell (11) is located at the bottom of the charging body (1); The fan (2) includes at least: a fan housing (21), a fan blade assembly (22), and a fan duct (23); the fan housing (21) is fixed on the sheet metal base (11), and the fan blade assembly (22) is disposed inside the fan housing (21); In the axial direction, the fan blade assembly (22) faces directly toward the sheet metal base shell (11), and there is a gap between them; The fan duct (23) and the main duct (12) are connected.

2. The wireless charging module according to claim 1, characterized in that, A recess (111) is formed on the sheet metal base shell (11); The position of the fan blade assembly (22) corresponds to the recess (111).

3. The wireless charging module according to claim 1 or 2, characterized in that, The fan housing (21) has an open structure on the side facing the sheet metal base (11), so that the fan blade assembly (22) faces the sheet metal base (11) directly in the axial direction.

4. The wireless charging module according to claim 1, characterized in that, The charging body (1) also includes: The plastic outer shell (13) is fixed to the sheet metal bottom shell (11), forming an internal cavity; The coil (14) is disposed in the cavity and its working direction is toward the plastic shell (13); A printed circuit board assembly (15) is disposed in the receiving cavity and communicates with the coil (14); A shielding cover (16) is disposed in the receiving cavity, located between the coil (14) and the sheet metal base shell (11); A filter plate (17) is disposed outside the receiving cavity on the plastic housing (13).

5. The wireless charging module according to claim 2, characterized in that, The recess (111) extends at least one side to the edge of the sheet metal base (11).

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